Enhancement of Nitrous Oxide Emissions in Soil Microbial Consortia via Copper Competition between Proteobacterial Methanotrophs and Denitrifiers

Author:

Chang Jin12,Kim Daehyun D.1,Semrau Jeremy D.2,Lee Ju Yong1,Heo Hokwan1,Gu Wenyu2,Yoon Sukhwan1ORCID

Affiliation:

1. Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology, Daejeon, South Korea

2. Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA

Abstract

Proteobacterial methanotrophs—groups of microorganisms that utilize methane as a source of energy and carbon—have been known to utilize unique mechanisms to scavenge copper, namely, utilization of methanobactin, a polypeptide that binds copper with high affinity and specificity. Previously the possibility that copper sequestration by methanotrophs may lead to alteration of cuproenzyme-mediated reactions in denitrifiers and consequently increase emission of potent greenhouse gas N 2 O has been suggested in axenic and coculture experiments.

Funder

National Research Foundation of Korea

U.S. Department of Energy

Ministry of Environment

Publisher

American Society for Microbiology

Subject

Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology

Reference71 articles.

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5. The diversity of the N2O reducers matters for the N2O:N2 denitrification end-product ratio across an annual and a perennial cropping system

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